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TW <br /> TWINING LOG OF SOIL BORING <br /> LABORATORIES. INC BORING MW—IRA <br /> Protect: Frontier Transportation Protect Number. 923502.01 <br />' Locaflon: 425 Larch Road, Tracy, CA Date Started. August 15, 1995 <br /> Logged By- Patricia Jones Date Completed: August 15, 1996 <br /> Drilled By Lep Proet Drill Type. CME-75 <br /> Auger Type: HSA <br />' Depth to Groundwater: 10.5 feet Elevation: <br /> DEPTH SOIL SYMBOLS <br /> (feet) SAMPLER SYMBOLS USCS Soil Description Blow* per Remarks <br /> AND FIELD TEST DATA foot <br /> 0 <br /> Asphaltic—concrete Pavement <br /> CL CLAY, sand , vary dark gray <br /> (2.5Y, M, slightly plastic <br /> to piastic. 25% very fine to <br /> fine sand. slightly moist, no <br /> odor <br />' <br /> Some. dark gray brown (2.5Y, <br /> 4/2), s[ightiy plastic, 35% <br /> sand, moist <br /> Some, fight brown gray (2.5Y, <br /> S/2), plastic, 30% very fine <br />' sand, moist to very maist <br /> 10 2/6 Some, gray (2.5Y, 5/1) PID: 975 ppm <br /> 2/6 5 <br /> 3/6 <br /> Bottom of Boring <br /> 15 <br />' 20 <br />' 25 <br /> 1 <br /> 3o <br /> Notes. S2nce hydrocarbon vapors were detected ?,n the soil sample collected <br /> from 10 feet below grade, the borzng was abandoned. The boring was <br /> backfilled with. Portland cement concrete <br /> 1 <br />